Hibiki Amami would be an ordinary high school student were it not for one detail: a sixth sense that enables her to see ghosts. Instead of feeling fear, Amami is more keen on befriending and assisting the spirits. This frequently results in her human friends encountering paranormal activity as the ghosts attempt to aid Amami with daily chores. Most of Amami's friends accept that she possesses a sixth sense, but Narumi Inoue—a girl terrified of the supernatural—refuses to admit that ghosts are real. Although she is frightened and stubborn, Inoue joins the rest of her friends, who have decided to take on Amami's mission of helping ghosts in whatever way they can.